Lintlha tsa motheo tsa basebelisi
Ts'ebetso ea mantlha ea likhoerekhoere tsa lehae tsa k'hamphani e hloekisang metsi a litšila, karolo ea phepelo ea motlakase ea mohala oa phepelo ea metsi a litšila e sebelisa li-motors tsa DC tse feto-fetohang, tse nang le li-transformer tsa 1000KVA2, 630KVA.Setšoantšo sa sistimi ea phepelo ea motlakase ke se latelang:
Lintlha tse sebetsang hantle
Matla a hlahisoang ke 1000KVA transformer soft starter ke 860KVA, karolelano ea matla ke PF=0.83, hona joale e sebetsang ke 1250A, hona joale e sebetsang ke 630KVA, ntlha ea matla ke PF=0.87, 'me hona joale e sebetsang ke 770A.Kahoo kakaretso ea matla e ka ba 0.84 feela.
Tlhahlobo ea Boemo ba Boemo ba Matla
Mojaro o ka sehloohong oa ballast ea converter ke 6 single-pulse ballasts.Thepa ea ballast e hlahisa palo e kholo ea pulse hona joale mosebetsing oa ho fetola AC ho DC.Ke mohloli o tloaelehileng oa ho otla ha motlakase 'me o kenngoa ka har'a marang-rang a matla.Maqhubu a Harmonic a baka matla a ho sebetsa a pulsed hona joale ho ts'ebetso ea ts'ebetso ea grid ea motlakase, e bakang tahlehelo ea matla a motlakase le a hona joale, a beha boleng le ts'ireletseho ea ts'ebetso ea phepelo ea motlakase, ho eketsa tahlehelo ea mohala le ho kheloha ha motlakase, le ho baka litlamorao tse mpe ho marang-rang a matla le limela tsa motlakase ka botsona Tšusumetso.
Sesebelisoa sa komporo ea taolo ea lenaneo (PLC) se na le maikutlo a ho sotha ha harmonic ea matla a sebetsang a phepelo ea motlakase.Ka kakaretso ho boletsoe hore tahlehelo ea motlakase oa motlakase oa hona joale (THD) e ka tlase ho 5%, 'me motlakase oa motlakase oa motho ka mong o sebetsa haeba sekhahla sa foreimi se le holimo haholo, phoso ea ts'ebetso ea tsamaiso e ka lebisa ho sitisoeng. tlhahiso kapa tshebetso, e bakang kotsi e kgolo ya molato wa tlhahiso.Ka hona, filthara ea puseletso ea matla a tlase a matla a sebetsang a matla a nang le ts'ebetso ea khatello ea hona joale ea pulse e lokela ho sebelisoa ho hatella motlakase oa sistimi, ho lefa mojaro o sebetsang, le ho ntlafatsa matla a matla.
Sefa moralo oa kalafo oa mats'eliso a matla a sebetsang
Lipheo tsa puso
Moralo oa lisebelisoa tsa matšeliso a filthara o kopana le litlhoko tsa khatello ea harmonic le taolo e sebetsang ea khatello ea matla.
Tlas'a mokhoa oa ho sebetsa oa tsamaiso ea 0.4KV, ka mor'a hore lisebelisoa tsa matšeliso a filthara li kenngoe tšebetsong, pulse current e hatelloa, 'me tekanyo ea khoeli le khoeli ea matla e ka ba 0.92.
Boemo bo phahameng ba harmonic resonance, resonance overvoltage, le overcurrent e bakoang ke ho hokahanya le potoloho ea lekala ea matšeliso ea filthara e ke ke ea etsahala.
Moqapi o Latela Melao
Boleng ba matla Li-harmonics tsa grid ea sechaba GB/T14519-1993
Boleng ba matla Voltage fluctuation le flicker GB12326-2000
Maemo a akaretsang a tekheniki a sesebelisoa sa puseletso ea matla a tlase-voltage reactive GB/T 15576-1995
Sesebelisoa sa mats'eliso a matla a tlase-voltage a sebetsang JB/T 7115-1993
Maemo a tekheniki a puseletso ea matla a sebetsang JB/T9663-1999 "Low-voltage reactive power automatic compensation controller" ho tsoa ho boleng bo phahameng ba moeli oa hona joale oa harmonic oa matla a tlase le lisebelisoa tsa elektroniki GB/T17625.7-1998
Mantsoe a theknoloji ea motlakase Li-capacitor tsa matla GB/T 2900.16-1996
Low voltage shunt capacitor GB/T 3983.1-1989
Reactor GB10229-88
Mohloli oa IEC 289-88
Taolo ea mats'eliso a matla a tlase a sebetsang ka matla a tlase a laela maemo a tekheniki DL/T597-1996
Kereiti ea tšireletso ea motlakase ea matla a tlase a GB5013.1-1997
Li-switchgear tse tlase-tlase le lisebelisoa tsa taolo GB7251.1-1997
Mehopolo ea moralo
Ho ea ka boemo bo ikhethileng ba k'hamphani, ho entsoe moralo oa puseletso ea matla a sebetsang bakeng sa filthara ea motlakase e nahanang ka botlalo ka matla a matla le khatello ea hona joale ea pulse, 'me ho kentsoe sete ea motlakase o tlase oa 0.4kV. lehlakoreng la k'hamphani ea transformer Reactive matla matšeliso a ho hatella pulse hona joale, ho lefella boima bo sebetsang, le ho ntlafatsa matla a matla.
Ballast e hlahisa 6K-1 order pulse current nakong ea ts'ebetso ea converter, 'me e sebelisa tatellano ea khoutu ea makhasi ho pota 5250Hz le 7350Hz ho phethahatsa phetoho ea ho qhibiliha.Ka hona, moralo o sebetsang oa puseletso ea matla a filthara ea maqhubu a mahareng a induction e lokela ho nka 250Hz, 350Hz le moralo oa maqhubu joalo ka sepheo, e le ho etsa bonnete ba hore lekala la mats'eliso a filthara le ka hatella puseletso ea hona joale ea pulse, 'me ka nako e ts'oanang. nako hatella mojaro o sebetsang le ho ntlafatsa Power Factor.
kabelo ea moralo
Matla a pharalletseng a mohala oa tlhahiso ea 1000KVA o lefelloa ho tloha ho 0.8 ho isa ho 0.95.Thepa ea matšeliso ea filthara e hloka ho kenngoa ka bongata ba 380KVar, e arotsoeng ka lihlopha tse 'nè, tseo e' ngoe le e 'ngoe ea tsona e koetsoeng ka bo eona le ho khaoha, e lefella ho hanyetsa ha lehlakoreng la motlakase o tlase oa transformer,' me e na le molumo oa phetoho ea mohato. ea 45KVAR, e ka kopanngoang le litlhoko tsa matla a tlhahiso ea mohala oa tlhahiso.Matla a akaretsang a lefshoa ho tloha ho 0.8 ho isa ho 0.95.Thepa ea matšeliso ea filthara e hloka ho kenngoa ka boholo ba 310KVar, 'me lihlopha tse' nè li khaotsoe ka mokhoa o ikemetseng ho lefella moea o tlaase oa lehlakoreng la transformer, 'me molumo o fetoloa ho 26KVAR ho finyella litlhoko tsa motlakase oa ho sebetsa oa mohala oa tlhahiso.
Tlhahlobo ea phello ka mor'a ho kenya matšeliso a filthara
Ka Phato 2010, sesebelisoa sa mats'eliso a matla a sefang a inverter se ile sa kengoa 'me sa qala ho sebetsa.Sesebelisoa se latela ka bohona phetoho ea mojaro oa inverter, se hatella li-harmonics tse phahameng ka nako ea nnete, se lefella matla a sebetsang, 'me se ntlafatsa matla a matla.lintlha tse latelang:
Ka mor'a hore sesebelisoa sa matšeliso a sefa se sebelisoe, motlakase oa phetoho ea motlakase ka mor'a hore sesebelisoa sa puseletso se sebelisoe ke hoo e ka bang 0.97 (karolo e phahamisitsoeng e ka ba 0.8 ha sesebelisoa sa matšeliso se tlosoa)
Ts'ebetso ea mojaro
Hona joale e sebelisoang ke 1000KVA transformer e fokotsehile ho tloha 1250A ho ea ho 1060A, ho theoha ha 15%;ea hona joale e sebelisoang ke 630KVA transformer e fokotsehile ho tloha ho 770A ho ea ho 620A, ho theoha ha 19%.Ka mor'a matšeliso, boleng ba ho fokotsa tahlehelo ea matla ke WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Ka foromo, Pd ke tahlehelo ea potoloho e khuts'oane ea transformer, e leng 24KW, mme poloko ea selemo le selemo ea litšenyehelo tsa motlakase ke 16 * 20 * 30 * 10 * 0.7 = 67,000 yuan (e thehiloeng ho sebetsa lihora tse 20 a letsatsi, matsatsi a 30 ka khoeli, likhoeli tse 10 ka selemo, 0,7 yuan ka kWh).
Ts'ebetso ea mojaro
Hona joale e sebelisoang ke 1000KVA transformer e fokotsehile ho tloha 1250A ho ea ho 1060A, ho theoha ha 15%;ea hona joale e sebelisoang ke 630KVA transformer e fokotsehile ho tloha ho 770A ho ea ho 620A, ho theoha ha 19%.Ka mor'a matšeliso, boleng ba ho fokotsa tahlehelo ea matla ke WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Ka foromo, Pd ke tahlehelo ea potoloho e khuts'oane ea transformer, e leng 24KW, mme poloko ea selemo le selemo ea litšenyehelo tsa motlakase ke 16 * 20 * 30 * 10 * 0.7 = 67,000 yuan (e thehiloeng ho sebetsa lihora tse 20 a letsatsi, matsatsi a 30 ka khoeli, likhoeli tse 10 ka selemo, 0,7 yuan ka kWh).
Nako ea poso: Apr-14-2023